20463989

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{4243}}^1$

素因数の和:4316

約数の個数: 16

約数和(自身を含む): 25667712

約数和(自身を除く): 5203723

約数列:

[1, 7, 13, 53, 91, 371, 689, 4243, 4823, 29701, 55159, 224879, 386113, 1574153, 2923427, 20463989]

約数ペア:

[(1, 20463989), (7, 2923427), (13, 1574153), (53, 386113), (91, 224879), (371, 55159), (689, 29701), (4243, 4823)]